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Differential diagnosis of iron deficiency anaemia (IDA) and anaemia in chronic inflammatory disease (ACD)
| Laboratory parameter | IDA | ACD | IDA + ACD |
|---|---|---|---|
| Haemoglobin | ↓ | ↓ | ↓ |
| C-reactive protein (CRP) | Normal | ↑ | ↑ |
| Serum ferritin | ↓ | ↑ | ↑ or normal |
| Transferrin saturation (TfS) | ↓ | ↓ | ↓ |
| Soluble transferrin receptor (sTfR) | ↑ | Low (< 1) | ↑ or normal |
